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Relativistic Many-Body Theory: A New Field-Theoretical Approach

Relativistic Many-Body Theory: A New Field-Theoretical Approach

Paperback

Series: Springer Atomic, Optical, and Plasma Physics, Book 63

Physics

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ISBN10: 1461428718
ISBN13: 9781461428718
Publisher: Springer Nature
Published: Jul 15 2013
Pages: 366
Weight: 1.19
Height: 0.79 Width: 6.08 Depth: 9.21
Language: English

This book gives a comprehensive account of relativistic many-body perturbation theory, based upon field theory. After some introductory chapters about time-independent and time dependent many-body perturbation theory (MBPT), the standard techniques of S-matrix and Green's functions are reviewed. Next, the newly introduced covariant-evolution-operator method is described, which can be used, like the S-matrix method, for calculations in quantum electrodynamics (QED). Unlike the S-matrix method, this has a structure that is similar to that of MBPT and therefore can serve as basis for a unified theory. Such an approach is developed in the final chapters, and its equivalence to the Bethe-Salpeter equation is demonstrated. Possible applications are discussed and numerical illustrations given.

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